public final function JoinRow(Relational\ColumnData $PrimaryKey1, Relational\ColumnData $PrimaryKey2)
{
$Row = $this->Row();
$this->ForeignKey1->MapReferencedToParentKey($PrimaryKey1, $Row);
$this->ForeignKey2->MapReferencedToParentKey($PrimaryKey2, $Row);
return $Row;
}